<?php
	class ServingIndicator
	{
		public const KEEP_SERVING = 'Keep on serving';
		public const STOP_MET_IMPRESSION_DATE_AND_GOAL = 'Stop when both impression date and goal are met';
		public const EITHER = 'Stop when either impression goal or end date is met';
		public const STOP_MET_END_DATE = 'Stop when end date is met';
		public const STOP_MET_IMPRESSION_GOAL = 'Stop when impression goal is met';
	}
?>